Pipeline plug



FIG. 1 is a top plan view of a pipeline plug, showing our new design in an inflated state;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view thereof and showing the side opposite that of FIG. 2;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top plan view thereof, in a deflated state;

FIG. 8 is a side elevational view thereof;

FIG. 9 is a front elevational view thereof;

FIG. 10 is a rear elevational view thereof;

FIG. 11 is a side elevational view thereof and showing the side opposite that of FIG. 8;

FIG. 12 is a bottom plan view thereof;

FIG. 13 is a top plan view of an alternate embodiment, showing our new design in an inflated state;

FIG. 14 is a side elevational view thereof;

FIG. 15 is a front elevational view thereof;

FIG. 16 is a rear elevational view thereof;

FIG. 17 is a rear elevational view thereof and showing the side opposite that of FIG. 14;

FIG. 18 is a bottom plan view thereof; and,

FIG. 19 is a perspective view of the pipeline plug of FIG. 1 and which shows our new design of a pipeline plug in an inflated state. 

The ornamental design for the pipeline plug, as shown and described. 